Improvement in shuttle-checkl for looms



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DAVID PICKMAN, OE LOWELL, MASSACHUSETTS, ASSIGNOR TU HIMSELF AND STUART BISHOP, OF SAME PLACE.

Letters Patent No. 98,188, dotted DecamlwrQl, 1869.

The Schedule referred to in these Letters Patent and making vpart of theV same.

To all whom, it may concern Be it' known that I, DAVID PICKMAN, of Lowell, in the count-y of' Middlesex, and State 0f Massachusetts, have invented new and useful Improven'lents in Sl'iuttle-Binders for Looms; and I do hereby declare that the fbllowingis a full and exact description there4 ot', reference being had` to the accompanying drawings, and to the letters of reference marked thereon. My invention consists in a combination lof devices -with the shuttlebox, operating and disconnected from the protector, whereby the slmt-tle is stopped and held irm, at a given point, by its end,lwitl| but little damage to tl1e`picker,"and, when operated np'on by the picker, guides the shuttle straight through the warp.

'Io enable others skilled in the art to make and use my invention, I will proceed .to describe its construction and operation. l

Figure 1 represents a plan of a shuttle-box, with my improved devices.

Figure 2 represents a side elevation, and

Figures 3 and 4 represent a plan, and end view of the block. v

Similar letters in the diferent figures indicate correspomling'parts. e

to-epreseuts a shuttle-box,- nowcominonly used, and located on each eud of the lathe, said box being provided with a back-board, b, and protector c.

Through the bottom of this box, and extending,y lengthwise of the same, is a lnortise, for the reception of the picker d, which is operated in the usualmanner.

Secured to the back-board b is the block e, its working-surface being tapering, and concaved or shaped the re'verse from the end of' the shuttle, as shown iu figs. 3 and 4.

On the other side of' this box a is secured an elliptical spring, jl Said spring and block care so arranged asl to be adjustable, if required.

Ihe operation of my improved device is as follows: The shuttle. g starts, and is stopped at a given fixed point, it being operated in the usual manner, said point being determined and fixed by means of the block c and spring f, between which the end of the shuttle g passes and stops, which prevents the tip from coming,r in contact with the pickel' d only at such times as the shuttle g is thrown.

This operation not only stops the shuttle, but holds the same atthedesired fixed point, until it is required to be operated upon again, which prevents the filling from being thrown off of the bobbin, as. there is no abrupt stopping, and consequently, no rebound.

Anotherimportant feature is that the shuttle g, being stopped hef'ore the tip comes in contact with the picker -fZ, protects the saine, and also, as .the speed of the4 loom varies, the picker el, in all cases, meets the shuttle g at the same point, while, in the common arrange'-, nient,- it meets the shutt-le'at different points, thus preventing it from beingthrown as desired.

The shuttle g 'being held firmly at the end, instead of being bound at the middle,iprevents the filling from being cut or broken, and with the assistance of' the block e, the picker (Lgiving it the blow in that position, is guided straight across the loom.

' Also, the binder-device and the protector c being disconnected, the protector` c may be altered to any required position without interfering in the least with the binder.

And, finally, as the spring f and blookein their nrrangement, tend to release the shuttle g'rather thanto hold it, no extra. power is required to throw the shuttle g. 1u the commonl arrangement of' springs, to prevent the rebound, extra power is required. What I cla-im as my invention, and desire to secure I by Letters Patent, isf- The arrangement withinthe shuttle-box, and onA opposite'sides thereof, of the springf and adjustable block e, when the said-parts are constructed and operate to check the movement of' the shuttle, de-v scribed.

DAVID PICKMAN.

Witnesses:

HENRY BISHOP, Guo. E. lnvEY. 

